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"in-situ" refers to in situ measurments using a showerhead-type gas exchanger connected to a PCO2 logger CM-0001, CO2Meter, Inc
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Alkalinity, total
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Alkalinity, total, standard deviation
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Automated level loggers Hobo U20-001 combined with DGPS elevation only for piezometers
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Carbon dioxide, partial pressure
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Carbon, inorganic, dissolved
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Carbon, inorganic, dissolved, standard deviation
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Carbonate chemistry
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Conductivity, electrical
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DATE/TIME
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ELEVATION
Flow injection analysis technique based on the method proposed by Hall and Aller, 1992 and calibrated with a reagent grade sodium bicarbonate NaHCO3 solution, 2 replicates by samples
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GRAN titration on 50 mL water samples with a Metrohm 848 Titrino Plus device calibrated by comparison with a Dickson certified reference material, 3 replicates by samples
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LATITUDE
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LONGITUDE
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Location
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Method comment
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Multiparametric probe 600QS, YSI Inc
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Multiparametric probe, YSI Inc., 600QS [calibrated with 1413µS/cm standard]
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NBS values, Multiparametric probe 600QS, YSI Inc. calibrated with three NBS buffers with known pH values 4.00, 7.00, and 10.00
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Piezometer
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Radon-222
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Radon-222, standard deviation
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Sample ID
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Site
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Temperature, water
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Two RAD7 Alpha spectrometer Durridge Inc. in a series with an outgassing unit
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Type
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WGS84 EPSG4326
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aquifer-river connectivity
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